package com.itheima.reggie.impl;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.reggie.common.CustomException;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.mapper.CategoryMapper;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishService;
import com.itheima.reggie.service.SetmealService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

/**
 * @author chm
 * @version 1.0.0 v
 * @date 2022-08-13 21:31
 */
@Service
public class CategoryServiceImpl extends ServiceImpl<CategoryMapper, Category> implements CategoryService {

    @Autowired
    private DishService dishService;

    @Autowired
    private SetmealService setmealService;




    @Override
    public void remove(Long id) {
        //对菜进行查询并计数
        LambdaQueryWrapper<Dish>dishLambdaQueryWrapper=new LambdaQueryWrapper<>();
        dishLambdaQueryWrapper.eq(Dish::getCategoryId,id);
        int count1=dishService.count(dishLambdaQueryWrapper);
        if (count1>0){
            throw new CustomException("删除此菜品信息有风险，请勿删除");
        }
        //对套餐进行查询并计数

        LambdaQueryWrapper<Setmeal>setmealLambdaQueryWrapper=new LambdaQueryWrapper<>();
        setmealLambdaQueryWrapper.eq(Setmeal::getCategoryId,id);
         int count2=setmealService.count();
         if (count2>0){
             throw new CustomException("删除此套餐信息有风险，请勿删除");
         }

         super.removeById(id);
    }

}
